Locomotive-engine.



Patented Apr. 22

- C. HAGANS.

LUGOMOTIVE ENGINE. A hcmdn file d Dec. 12 1901 (No odel.

UNITED STATES PATENT OFFICE.

CHRISTIAN HAGANS, OF ERFURT, GERMANY.

LOCOMOTlVE-ENGINE.

SPECIFICATION forming part of Letters Patent No. 698,276, dated April22, 1902.

Application filed December 12, 1901. Serial No. 85,686. (No model.)

.To all whom, it 77I/6Ly concern:

Be it known that I, CHRISTIAN HAGANS, manufacturer, a subject of theKing of Prns sia, German Emperor, residing at Erfurt, in the Kingdom ofPrussia and German Empire, have invented certain new and usefulImprovements in Locomotive Engines, of which the following is aspecification.

This invention relates to certain new and useful improvements incompound locomotive, with coupled axle provided at each side thereofnear their front end, with a pair of outside cylinders arranged tandem,but laterally of a direct line joining their longitudinal axis.

.In order that the invention may be the better understood, it isillustrated in the annexed drawings, wherein.-

Figure 1 shows an elevation; Fig. 2, a plan, and Fig. 3 a cross-section.

The locomotive is provided at each side,

near the front end thereof, with a pair of cylindersthe high-pressurecylinder 0 and the low-pressure cylinder 0 respectively arranged asoutside cylinders, their connecting-rods acting jointly on thedriving-axle T, the crank-pins being set at an'angle of one hundred andeighty degrees to each other. For this purpose the connecting-rod Z ofthe low-pressure cylinders O is made to act on an inner crank-pin I andthe connecting-rod Z of the high-pressure cylinder 0 on an outercrank-pin A. The driving-axle T is coupled with the other axles T T bycoupling-rods K K. The coupling-rods K are driven from the innercrank-pin I of the crank cl of axle T and act on the coupling-pins m ofthe axles T T In order to render the mode of driving just described afeasible one, the cylinders O and C must be arranged in the form ofoutside cylinders and close to and behind each other, so that thepiston-rod or the connecting-rod of the lowepressure cylinder 0 may passat the back of the high-pressure cylinder 0.

Figs. 2 and 3 show cross-head guides a for the low-pressure cylinder 0and b for the high-pressure cylinder 0. The center lines of thecylinders being brought close to each motion of the driving-gear isobviated or greatly reduced.

In order to take up the strains which, in consequence of the arrangementof the crankpins on opposite sides, may arise in the cylinders Ci 0 andprevent their being transmitted to the frame of the engine, thecylinders O and O are connected with each other by rods 0 0, Figs. 1 and2, which take up di root the strains acting in opposite directions toeach other.

Instead of making the connecting-rods Z Z act direct on inside andoutside crank'pins on one of the same cranks d they may also be I madeto act on cranks on various drivingaxles; but the crank-pins must alwaysbe set at angles of one hundred and eighty degrees to each other.

I claim 1. A compound locomotive provided at each side near the forwardend thereof with a pair of cylinders arranged tandem but laterally ofadirect line joining their longitudinal axis.

2. A compound locomotive-engine,provided with a pair of cylinders ateach side near the forward end thereof and arranged tandem but laterallyof a direct line joining their 1ongitudinal axis, a pair of crank-pinscarried by the drive-wheel of the locomotive and set at an angle of onehundred and eighty degrees to each other, suitable connections betweenthe crank-pins and the cylinders, and means for connecting the cylindersto each other for the purpose of taking up strains set up in thecylinders in opposite directions.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CHRISTIAN I-IAGANS.

- Witnesses:

PAUL TSIDEMANN, AUGUST BIERVIZEL.

